He has an overall understanding of various web-technologies, and web-programming languages & tools as you can see from his writings and editing works on web technologies. http://bangla.salearningschool.com/author/rafiq1980/ http://bangla.salearningschool.com/author/rafiq/

Reference for Rafiq: Sayed Ahmed (http://sitestree.com/author/sayed/) . Rafiq was also trained by Sayed